Add database entry for optimal count of sectors for multiple read in devices.

DiscImageChef.Database/Migrations/20190102230036_AddOptimalReadMultipleCount.cs

@@ -0,0 +1,17 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace DiscImageChef.Database.Migrations
+{
+    public partial class AddOptimalReadMultipleCount : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<int>("OptimalMultipleSectorsRead", "Devices", nullable: false, defaultValue: 0);
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn("OptimalMultipleSectorsRead", "Devices");
+        }
+    }
+}